scale factor
dilations
similarity theorems
find missing sides/angles
100
congruent figures have a scale factor of ____
1
100
dilations are the only non-_______ transformation
rigid
100
Which triangle similarity theorem proves that these triangles are similar?
SSS
100
These triangles are similar. What is the value of x?
14
200
Triangle DEF is the image of triangle ABC after a dilation. What is the scale factor?
1/2
200
What point is the center of this dilation?
(0, 0)
200
Which triangle similarity theorem proves that these triangles are similar?
SAS
200
These triangles are similar. Find the value of x.
9
300
Triangle ABC is the image of triangle DEF after a dilation. Is the scale factor greater than or less than one?
less than
300
Line AB is 4 units long and line CD is 8 units long. AB is perpendicular to CD. Is line CD a dilation (and only a dilation) of line AB?
no
300
Are these triangles similar?
Yes
300
A square with side length 12 units undergoes a dilation with scale factor 3/4. What is the area of the image?
81 units squared
400
What is the scale factor of this dilation?
2
400
Select the true statement from the options below:
A) triangle JKL is congruent to triangle SQR through a rotation and dilation.
B) triangle JKL is similar to triangle SRQ through a dilation.
C) triangle JKL is not similar to triangle SQR because it does not have a consistent scale factor.
D) triangle JKL is similar to triangle SQR through a reflection and dilation.
D
400
Which similarity theorem can be used to prove that these triangles are similar?
A) angle-angle
B) side-angle-side
C) side-side-side
A) angle-angle
400
An equilateral triangle with side lengths of 2 units undergoes a dilation by a scale factor of 5. Give the measure of one of the angles in the image.
60 degrees